New
#11
Here's some words... not from the underpants gnome, but from the sock Dwarf!
I make that 3 beds (3 top sheets, 3 bottom sheets and 5 pillow cases). But shouldn't that be 6 pillow cases, 2 per bed?
You said that you've checked the machines. But have you checked the wash-basket? Or the ironing pile? What about under the mattress? Back to the dryer. I trust that you cleaned and replaced the lint filter prior to use. Does it have a large flexible pipe carrying warm/hot air away to an external vent? Could your pillow case be somewhere in that pipe?